Cisco Guard DDoS mitigation appliances from Cisco Systems contribute to the industry's most complete and powerful family of solutions for detecting and defeating today's highly complex and sophisticated distributed-denial-of-service (DDoS) attacks. Working in concert with Cisco Traffic Anomaly Detectors, Cisco Guards detect the presence of a potential DDoS attack, and block malicious traffic in real time, without affecting the flow of legitimate, mission-critical transactions, thus ensuring availability and business continuity. The Cisco Guard XT diverts traffic destined for a targeted device under attack (and only that traffic) and subjects it to the unique Multi-Verification Process (MVP) architecture from Cisco. The MVP architecture imposes multiple layers of defense designed to identify and block the specific packets and flows responsible for the attack while allowing legitimate transactions to pass, ensuring business continuity even while under attack. The Cisco Guard XT 5650 delivers multigigabit performance to protect the largest enterprises and service providers from distributed denial-of-service (DDoS) attacks by performing per-flow-level attack analysis, identification and mitigation to block specific attack traffic.